Coming soon: An optional kernel with a 1.2ghz step. There are some code conflicts to work out between the CM9 kernel implementation and the CM7 kernel, mostly due to the aggressive memory work for CM9. Check back later for status.

Friday, April 13, 2012

Utility for CM9 / CM10 Epic 4G
This is a temporary ROM that boots Samsung's FC09 firmware entirely from sdcard without making any changes to the ROM installed on your phone. Simply reboot to return to your normal ROM. This sdcard ROM is useful for several purposes.

Monday, April 9, 2012

The Epic CM team is proud to announce the release of CM9 beta2 for Sprint's Samsung Epic 4G. Please follow us on Google+, Facebook, or Twitter for the latest news. This release contains bugfixes and a major version upgrade to Android 4.0.4!

Monday, April 2, 2012

zanderman112 has taken the FC09 update.zip that was found on Google's servers and created a CWM flashable zip that will upgrade your EL30 modem to FC09. If you are currently on CyanogenMod (or any other mtd ROM), you will need to use the CWM5 BML kexec zip file found in this post.

There has not been much testing as far as stability or performance on this modem, but if you would like to try it, here it is!

Please note, if you decide to use the delta zip to upgrade your modem and you experience strange issues, you should assume your modem is corrupted and Odin back to EL30. From past experience of delta flash upgrades EC05->EI22->EL30 it seems modem corruption happens 10-20% of the time, even with pure stock phones! We have not seen any real difference with FC09 modem, so if your existing EI22 or EL30 modem is stable, you may be better off keeping your modem. See this post if you need to flash the older modems.

If you are on the FB15 modem, you must use Odin to load the EL30 modem if you want to upgrade to FC09 modem.

Update 4/7/2012: Due to code review we have decided to go with a more conservative 1.5MB RAM savings for the upcoming CM9 beta2. We will further investigate for later releases if it is 100% safe to further reduce the RAM usage by reverting triple buffering to the video decoder double buffering behavior used in gingerbread.

noobnl found a simple hack that reduces the kernel framebuffer memory, giving 7MB to userspace on Epic 4G. We need your help to test this kernel and report any changes in behavior that you see.

There *has* to be a drawback to this, perhaps in a very rare corner case. If you find a failure case, please verify it by doing the reproducer on the previous kernel, then again on this kernel.